/Engine/Plugins/Experimental/Mutable/Source/MutableRuntime/Public/MuR/MemoryTrackingAllocationPolicy.h
Some Allocators, e.g,TAlignedHeapAllocatordo some static checks. Instanciate the BaseAlloc::ForElementType at compile time so those warnings are emitted.
typedef decltype(DeclVal< typename BaseAlloc::template ForElementType< ElementType >>()) BaseTypeInstantaitionType